File: configure.in

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sgrep 1.94a-4
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dnl Process this file with autoconf to produce a configure script.
AC_INIT(sgrep.h)
dnl And the makefile.in
AM_INIT_AUTOMAKE(sgrep, 1.94a) 

dnl Checks for programs.
AC_PROG_CC
AM_PROG_CC_STDC
AC_PROG_CPP
AC_PROG_MAKE_SET
AC_CYGWIN

dnl Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(fcntl.h limits.h sys/time.h unistd.h sys/times.h sys/mman.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T

dnl Checks for library functions.
dnl I don't use AC_FUNC_MMAP since it is too strict. readonly mappings are
dnl OK for sgrep, whether private or shared or whatever
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(mmap dup dup2 pipe fileno select strerror strtol times vsnprintf)

dnl Compilation options

dnl Check the preprocessor
AC_ARG_WITH(preprocessor,  [  --with-preprocessor=COMMAND 
                          Use preprocessor COMMAND [m4 -s]],
,with_preprocessor="m4 -s"
)
echo "Using preprocessor '${with_preprocessor}'"

dnl Check whether to enable assertions
AC_ARG_ENABLE(assertions,[  --disable-assertions    Disable all assertions. Recommended only for
                          benchmarking (currently).],
,
enable_assertions="1")
if test "x${enable_assertions}" = "xno"; then 
	echo "Disabling assertions."
	AC_DEFINE(ENABLE_ASSERTIONS,0)
else
	echo "Enabling assertions."
	AC_DEFINE(ENABLE_ASSERTIONS,1)
fi

dnl Check whether to disable assertions
AC_ARG_ENABLE(memory-debug,[  --disable-memory-debug  Disable builtin memory leak tracing. Recommended 
                          only for benchmarking (currently).],
,
enable_memory_debug="1")
if test "x${enable_memory_debug}" = "xno"; then 
	echo "Disabling memory leak and allocation debugging."
	AC_DEFINE(MEMORY_DEBUG,0)
else
	echo "Enabling memory leak and allocation debugging."
	AC_DEFINE(MEMORY_DEBUG,1)
fi



AM_CONFIG_HEADER(config.h)
AC_OUTPUT(Makefile)